A new hoist lifting device

Abstract

The utility model discloses a hoist lifting device, including motor, first stage pinion shaft, first stage planetary wheel, first stage small planet carrier, left normally closed clutch, second stage pinion, right normally closed clutch, second stage planetary wheel, fixed planet carrier, gear ring, reel and support, motor drive first stage pinion shaft, left and right normally closed clutch controls first stage pinion shaft and second stage pinion, first stage small planet carrier and second stage pinion's connection respectively to realize the switching of one -level or two -level transmission, and second stage planetary wheel rotates the reel through gear ring, and two clutch adjacent sides are equipped with plane thrust needle bearing to reduce axial force, and switching reduction ratio through clutch, can guarantee lifting capacity when heavy load, can enhance the speed when light load or no load, transmission is stable, and the efficiency is high and can be low in energy consumption.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting equipment technology, specifically referring to a new type of winch hoisting device. Background Technology

[0002] As a commonly used lifting machine, the winch's core components include a power drive mechanism, a reduction gear transmission mechanism, and a drum, used to lift and lower heavy objects. Existing winch lifting devices mostly employ multi-stage gear reduction structures to meet different lifting speed and torque requirements. In traditional two-stage or multi-stage planetary gear transmission structures, the power transmission path of each gear is relatively fixed, making it difficult to flexibly adjust torque and speed according to actual working conditions. Especially in scenarios requiring long-term low-speed, high-torque operation and short-term high-speed, no-load operation, existing structures generally suffer from high energy consumption, low transmission efficiency, and cumbersome switching operations, affecting overall operating efficiency and equipment lifespan.

[0003] In addition, some existing winches lack precise control over clutch switching in their structural design, which can lead to impacts between the gears and the drum when switching between high-speed and low-speed conditions, increasing wear and tear on transmission components and the risk of failure. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a new type of winch lifting device to at least partially solve the above technical problems.

[0005] The technical solution adopted by this utility model is as follows: This utility model proposes a novel winch lifting device, comprising a motor, a first-stage pinion shaft, a first-stage planetary gear, a first-stage planetary carrier, a left normally closed clutch, a second-stage pinion, a right normally closed clutch, a second-stage planetary gear, a second-stage fixed planetary carrier, a gear ring, and a drum; the output end of the motor is connected to the first-stage pinion shaft, and the second-stage pinion and the first-stage planetary gear are mounted on the first-stage pinion shaft; the first-stage planetary carrier is connected to the first-stage planetary gear, and the first-stage planetary carrier is connected to the second-stage pinion through the right normally closed clutch; the second-stage planetary gear is mounted on the second-stage fixed planetary carrier and is connected to the second-stage pinion; the left normally closed clutch is located between the first-stage pinion shaft and the second-stage pinion, and is used to control the connection between the first-stage pinion shaft and the second-stage pinion; the second-stage planetary gear is fixedly connected to the drum through the gear ring.

[0006] Furthermore, the left normally closed clutch has a normally closed structure. When the left normally closed clutch is closed, it connects the first-stage pinion shaft to the second-stage pinion. When the left normally closed clutch is open, it separates the first-stage pinion shaft from the second-stage pinion.

[0007] Furthermore, the right normally closed clutch is a normally closed structure. When the right normally closed clutch is closed, it connects the first-stage planetary carrier with the second-stage pinion. When the right normally closed clutch is open, it separates the first-stage planetary carrier from the second-stage pinion.

[0008] Furthermore, a first planar thrust needle roller bearing is provided on the adjacent side of the left normally closed clutch, and a second planar thrust needle roller bearing is provided on the adjacent side of the right normally closed clutch.

[0009] Furthermore, it includes a support, on which the drum is rotatably mounted.

[0010] Compared with the prior art, the present invention has the following advantages: This utility model provides a novel winch lifting device that, through the rational arrangement of left and right normally closed clutches in a two-stage planetary gear reduction system, and in conjunction with the linkage between the first-stage small planetary carrier and the second-stage small gear, achieves flexible switching of the power transmission path: when high-speed operation is required, the left normally closed clutch can control the direct connection between the first-stage small gear shaft and the second-stage small gear, reducing one stage of reduction and enabling rapid unloaded lifting of the drum; when low-speed, high-torque operation is required, the right normally closed clutch allows the power to be reduced stepwise through the first and second-stage planetary gears, ensuring stable output of high torque; thus simplifying the switching operation between high-speed and low-speed conditions, reducing the complexity of clutch control, maintaining transmission safety in power outages or abnormal conditions, and improving the operational reliability and service life of the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of a novel winch lifting device proposed in an embodiment of the present invention.

[0012] Figure 2 for Figure 1 A magnified view of point I in the middle.

[0013] Figure 3 for Figure 1 Enlarged view of section II.

[0014] Among them, 101, motor; 102, first plane thrust needle roller bearing; 103, left normally closed clutch; 104, first stage pinion shaft; 105, second stage pinion; 106, gear ring; 107, second stage planetary gear; 108, right normally closed clutch; 109, second plane thrust needle roller bearing; 110, first stage small planetary carrier; 112, first stage planetary gear; 113, drum; 114, second stage fixed planetary carrier; 115, support.

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] like Figures 1-3 As shown, this embodiment provides a novel winch lifting device, including a motor 101, a first-stage pinion shaft 104, a first-stage planetary gear 112, a first-stage planetary carrier 110, a left normally closed clutch 103, a second-stage pinion 105, a right normally closed clutch 108, a second-stage planetary gear 107, a second-stage fixed planetary carrier 114, a gear ring 106, and a drum 113. The output end of the motor 101 is connected to the first-stage pinion shaft 104. The first-stage planetary gear 112 is mounted on the first-stage pinion shaft 104 and can rotate with the shaft. The first-stage planetary carrier 110 is connected to the first-stage planetary gear 112 and is poweredly connected to the second-stage pinion 105 through the right normally closed clutch 108. The second-stage planetary gear 107 is mounted on the second-stage fixed planetary carrier 114 and meshes with the second-stage pinion 105. A normally closed left clutch 103 is located between the first-stage pinion shaft 104 and the second-stage pinion 105, and is used to connect the two power sources when closed to achieve transmission with different reduction ratios. The second-stage planetary gear 107 is fixedly connected to the drum 113 through the gear ring 106, thereby realizing the rotation of the drum.

[0019] In this embodiment, when the left normally closed clutch 103 is open and the right normally closed clutch 108 is closed, the output end of the motor 101 drives the first-stage planetary gear 112 to rotate through the first-stage pinion shaft 104. The first-stage planetary gear 112 drives the first-stage small planetary carrier 110 to rotate. The first-stage small planetary carrier 110 drives the second-stage pinion 105 to rotate through the closed right normally closed clutch 108. The second-stage pinion 105 drives the second-stage planetary gear 107 to rotate. Since the second-stage fixed planetary carrier 114 is fixed, the second-stage planetary gear 107 drives the gear ring 106 to rotate, thereby driving the drum 113 to lift or lower a heavier load. At this time, the reducer is a two-stage planetary reducer with a large reduction ratio and a slow drum running speed, which is suitable for lifting rated loads.

[0020] When the left normally closed clutch 103 is closed and the right normally closed clutch 108 is open, the output of the motor 101 directly drives the second-stage pinion 105 to rotate through the closed left normally closed clutch 103. The second-stage pinion 105 drives the second-stage planetary gear 107 to rotate, and the second-stage planetary gear 107 drives the gear ring 106 and the drum 113 to rotate, realizing the rapid lifting or lowering of the drum for light loads. At this time, the reducer is a single-stage planetary transmission with a small reduction ratio and a relatively fast drum speed.

[0021] When it is necessary to stop the drum 113, the motor 101 is stopped and the open clutch is closed. At this time, the first-stage planetary gear and the second-stage planetary gear inside the reducer generate mutual opposing thrusts and restrain each other, thereby forming a braking effect and reliably stopping the drum 113 without the need for an additional braking device.

[0022] The left normally closed clutch 103 proposed in this embodiment has a normally closed structure. When closed, it reliably connects the first-stage pinion shaft 104 and the second-stage pinion 105, so that the power of the motor 101 can be directly transmitted from the first-stage pinion shaft 104 to the second-stage pinion 105, achieving a higher drum speed. When the left normally closed clutch 103 is open, the first-stage pinion shaft 104 and the second-stage pinion 105 are separated. The output power of the motor 101 is transmitted to the first-stage planetary carrier 110 via the first-stage planetary gear 112, and then enters the second-stage pinion 105 through the right normally closed clutch 108, thereby realizing two-stage reduction transmission, and the drum 113 outputs high torque at a lower speed.

[0023] The right normally closed clutch 108 proposed in this embodiment is also a normally closed structure. In the closed state, it connects the first-stage planetary carrier 110 and the second-stage pinion 105 to ensure smooth transmission of the two-stage reduction power. In the open state, the first-stage planetary carrier 110 and the second-stage pinion 105 are separated, so that the power can directly enter the second-stage pinion 105 when the left normally closed clutch 103 is closed, forming a high-speed drive path.

[0024] To ensure smooth force distribution and reduce axial thrust during clutch switching, this embodiment provides a first planar thrust needle roller bearing 102 on the adjacent side of the left normally closed clutch 103 and a second planar thrust needle roller bearing 109 on the adjacent side of the right normally closed clutch 108. The first and second planar thrust needle roller bearings effectively distribute the axial force generated during clutch switching and transmission, reducing component wear and improving the transmission efficiency and service life of the device.

[0025] In this embodiment, the drum 113 is rotatably mounted via a bracket 115, which supports the drum 113 and maintains its axial stability. During operation, the motor 101 drives the first-stage pinion shaft 104 to rotate. The operator can control the opening or closing of the left and right normally closed clutches according to the work requirements to achieve high-speed no-load winding or low-speed high-torque boost. The entire structure utilizes the self-holding characteristic of the normally closed clutch, maintaining a safe lock even in the event of power failure or abnormal conditions, ensuring reliable support and safe operation of the drum 113 and the load.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel winch lifting device, characterized in that: It includes a motor (101), a first-stage pinion shaft (104), a first-stage planetary gear (112), a first-stage planetary carrier (110), a left normally closed clutch (103), a second-stage pinion (105), a right normally closed clutch (108), a second-stage planetary gear (107), a second-stage fixed planetary carrier (114), a gear ring (106), and a drum (113). The output end of the motor (101) is connected to the first stage pinion shaft (104), and the second stage pinion (105) and the first stage planetary gear (112) are mounted on the first stage pinion shaft (104); The first-stage planetary carrier (110) is connected to the first-stage planetary gear (112), and the first-stage planetary carrier (110) is connected to the second-stage pinion (105) through a right normally closed clutch (108); The second-stage planetary gear (107) is mounted on the second-stage fixed planetary carrier (114), and the second-stage planetary gear (107) is connected to the second-stage pinion (105); The left normally closed clutch (103) is located between the first-stage pinion shaft (104) and the second-stage pinion (105) and is used to control the connection between the first-stage pinion shaft (104) and the second-stage pinion (105); The second-stage planetary gear (107) is fixedly connected to the drum (113) via a gear ring (106).

2. The novel winch lifting device according to claim 1, characterized in that:

2. The left normally closed clutch (103) is a normally closed structure. When the left normally closed clutch (103) is closed, it connects the first stage pinion shaft (104) with the second stage pinion (105). When the left normally closed clutch (103) is open, it separates the first stage pinion shaft (104) from the second stage pinion (105).

3. The novel winch lifting device according to claim 2, characterized in that: The right normally closed clutch (108) is a normally closed structure. When the right normally closed clutch (108) is closed, it connects the first-stage planetary carrier (110) with the second-stage pinion (105). When the right normally closed clutch (108) is open, it separates the first-stage planetary carrier (110) from the second-stage pinion (105).

4. The novel winch lifting device according to claim 3, characterized in that: The left normally closed clutch (103) is provided with a first planar thrust needle roller bearing (102) on its adjacent side, and the right normally closed clutch (108) is provided with a second planar thrust needle roller bearing (109) on its adjacent side.

5. The novel winch lifting device according to claim 4, characterized in that: Includes a support (115), and the drum (113) is rotatably mounted on the support (115).

Images